AnswerHello Steve,
You will need to order part number MA-4012W for a power cord with a 1/2 inch diameter, #10 gauge wire, and 4 foot length. If you need a 1/2 inch diameter, #10 wire, and 6 foot length you will need TJMA-6012W. If you need a 4 foot, #8 wire, and 3/4 inch diameter you will need MA-4034W. The last choice I found available is a 6 foot, #8 gauge wire, with a 3/4 inch diameter TJMA-P6034W.